Public water system · CA4510006
ActiveCity of Shasta Lake
At a glance
City of Shasta Lake (PWSID CA4510006) is an active community water system in Shasta County, California. It reports serving 10,657 people through 3,893 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 1993.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
10,657
Service connections
3,893
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Shasta Lake compare with other water systems in Shasta County?
By EPA's size categories, City of Shasta Lake is a large system (10,001 to 100,000 people). Shasta County has 174 active public water systems, and City of Shasta Lake is the 4th-largest of them by population served. Its population served is about 8.8 times the county average of 1,208 people per system, and accounts for 5.1% of the 210,209 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Shasta Lake is about 59% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 609 California systems (8.1%) list surface water as their primary source.
Who owns and regulates City of Shasta Lake?
EPA lists City of Shasta Lake as owned by a local government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 31 of the 174 active systems in Shasta County (18%) are also owned by a local government.
Does City of Shasta Lake have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 1993. The violations listed here began between June 1993 and June 1993. By type: 1 monitoring and reporting and 1 required treatment not met. The contaminants or rules involved are Lead and Copper Rule and Surface Water Treatment Rule. EPA lists 2 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 1993-06-30 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
All 2 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
City of Shasta Lake: frequently asked questions
Who runs City of Shasta Lake?
City of Shasta Lake (PWSID CA4510006) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does City of Shasta Lake serve?
City of Shasta Lake reports serving 10,657 people through 3,893 service connections in Shasta County, California.
Where does City of Shasta Lake get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Shasta Lake have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 1993. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is City of Shasta Lake's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in June 1993. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find City of Shasta Lake's water quality report?
As a community water system, City of Shasta Lake must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Shasta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Redding | Shasta | 89,628 | Community | Surface water |
| Bella Vista Water District | Shasta | 18,612 | Community | Surface water |
| City of Anderson | Shasta | 11,147 | Community | Groundwater |
| Shasta District Fair | Shasta | 10,200 | Transient non-community | Groundwater |
| Clear Creek Csd-Anderson | Shasta | 8,900 | Community | Surface water |
| Centerville C.S.D. | Shasta | 4,151 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “City of Shasta Lake, PWSID CA4510006, California”, https://aquacensus.com/water-systems/california/city-of-shasta-lake-ca4510006 (data as of October 1, 2026).